Accession Number : AD0437158


Title :   SUPERCAVITATING AND VENTILATED PERFORMANCE OF THREE HYDROFOIL SECTIONS,


Corporate Author : DAVID TAYLOR MODEL BASIN WASHINGTON D C


Personal Author(s) : Dobay,G G ; Ficken,N L


Report Date : Jan 1964


Pagination or Media Count : 105


Abstract : Two-term, 5-term, and flat-faced hydrofoils with AR = 3, rectangular plan form, were tested to determine their supercavitating and ventilated performance. It was found that the 5-term section provides the highest lift-drag ratio for the same lift coefficient. The theoretical prediction agrees well with experimental data at high angles of attack. Means are suggested to hasten the development of leading edge cavitation at low angles of attack and to overcome the oscillating nature of the lift and drag forces in the transition region (between fully wetted and fully cavitating conditions). (Author)


Descriptors :   CAVITATION , HYDROFOILS , HYDRODYNAMIC CONFIGURATIONS , LIFT , DRAG , ANGLE OF ATTACK , VENTILATION , EXPERIMENTAL DATA


Distribution Statement : APPROVED FOR PUBLIC RELEASE